Clinical trials: Dimensional Changes
Growth Modification
Three-Dimensional Assessment of Dentoskeletal Changes Associated With a Modified Twin Block Appliance
The aim of the current study is to evaluate the skeletal, dental, soft tissue, TMJ, and upper airway size changes associated with a new design of twin block compared to the conventional twin block appliance.
- Trial name
- NCT06589206
- Testing
- modified design of twin block
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Cairo University
Pectus Excavatum
Quantification of Chest Wall Changes After Nuss Bar Removal Utilizing Three-dimensional Optical Surface Scans
Pectus excavatum is the most common anterior chest wall deformity that affects up to 1:400 of newborns. If an operative correction is indicated, patients are often operated via the Ravitsch or Nuss bar procedure. The latter (i.e.
- Trial name
- CHEST (NCT04052321)
- Testing
- 3D optical surface scan
- Where
- Netherlands
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Zuyderland Medisch Centrum
Choroid
Three-dimensional Choroidal Vascularity Index in Common Fundus Diseases
Explore the changes of choroidal blood perfusion in common fundus diseases by three-dimensional choroidal vascularity index, an optical coherence tomography (OCT) parameter.
- Trial name
- NCT04790084
- Testing
- no intervention
- Where
- China
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Renmin Hospital of Wuhan University
Canine Retraction
Assessment of Dimensional Bony Changes Following Laser Corticotomy
The patient's bone morphology during orthodontic treatment is an important consideration. Therefore, during orthodontic tooth movement (OTM), an imbalance between bone resorption and deposition will cause the tooth to move out of…
- Trial name
- Laser (NCT06702956)
- Testing
- laser corticotomy, Conventional tooth movement
- Where
- Egypt
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
Bilateral Cleft Lip and Palate, Maxillary Expansion
Efficiency of Two Maxillary Expanders for Maxillary Arch Expansion in Bilateral Cleft Lip and Palate Patients
This randomized controlled trial is designed to compare between Fan expander with palatal springs appliance vs three-way expander regarding the their effectiveness in maxillary expansion in patients with bilateral cleft
- Trial name
- NCT07056296
- Testing
- 3D Maxillary Expansion with 3 expansion screws, 3D Maxillary Expansion using modified Fan expander with springs
- Where
- Egypt
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
Unilateral Cleft Lip and Palate
Effect of Using Two Different Construction Techniques of Nasoalveolar Molding Devices in Unilateral Cleft Lip and Palate Patients
This study includes Three Dimensional Evaluation of Maxillary Arch Changes After Using Two Different Construction Techniques of Nasoalveolar Molding Devices in Unilateral Cleft Lip and Palate Patients (Randomized Controlled…
- Trial name
- NCT05837780
- Testing
- Nasoalveolar molding device
- Where
- Egypt
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Minia University
Malocclusion; Displaced Teeth
3-D Evaluation of Alveolar Bone Changes and Root Resorption After Traction of Buccally Displaced Maxillary Canines
This clinical study used CBCT images to investigate the alveolar bone changes and root resorption in unilateral buccally displaced maxillary canines and adjacent teeth before and after orthodontic traction of unilateral BDMCs.
- Trial name
- BDMC (NCT07399197)
- Testing
- T-loop, Piggyback double wire
- Where
- Yemen
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Sana'a University
Atrophy of Edentulous Alveolar Ridge, Alveolar Ridge Augmentation
Evaluation of Ridge Dimensional Changes After Immediate Implantation and Efficacy of This Procedure
1. Evaluation of dimensional changes in alveolar ridge following immediate implantation compared to delayed implantation 2. evaluation of the effect of gap dimensions between socket walls and dental implant in implant stability
- Trial name
- NCT01399775
- Testing
- immediate implantation, Delayed implantation
- Where
- Iran
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Mashhad University of Medical Sciences
Dental Crowding, Passive Extraction Space
Comparison of Alignment Efficiency, Arch Dimensional Changes, and Passive Extraction Space Closure Between Self-Ligating and Conventional Brackets
Purpose: This study aims to compare two types of orthodontic braces - self-ligating brackets (SLBs) and conventional brackets (CBs) - to see which one aligns teeth faster, affects the width of the dental arch, and closes spaces…
- Conditions
- Dental Crowding, Passive Extraction Space, Intercanine Width, Intermolar Width
- Trial name
- SLBs CBs RCT (NCT07503314)
- Testing
- Self-Ligating Brackets (SLB), Conventional Bracket
- Where
- Pakistan
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Saidu College of Dentistry